What this means
The IEEE assigned the MA-L block 40A93F to Pivotal Commware, Inc.. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting 40:A9:3F, it is Pivotal Commware, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 40A93F?
40A93F is registered to Pivotal Commware, Inc. in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. Pivotal Commware, Inc.'s block covers 16,777,216 addresses.
What devices use 40A93F?
Any network device with a MAC address starting 40:A9:3F was manufactured by or for Pivotal Commware, Inc..